ctigeek

    public class Periodic : IDisposable
    {
        private static readonly object lockObject = new object();
        private readonly List<PeriodicEvent> history = new List<PeriodicEvent>();
        private readonly Action action;
        private readonly Timer timer;
        private long id = 0;
        public PeriodicEvent LatestEvent { get; private set; }

ctigeek

function Get-ResponseCode($url) {
    try {
        $response = Invoke-WebRequest $url
        $response.StatusCode
    }
    catch {
        $_.Exception.Response.StatusCode.Value__
    }
}

ctigeek

class Program
    {
        static void Main(string[] args)
        {
            ManualResetEventSlim manualResetEvent = null;

            Console.CancelKeyPress += (sender, eventArgs) =>
            {
                Console.WriteLine("cancel!");
                manualResetEvent?.Set();

ctigeek

function Stop-ServiceAndWaitForItToDie {
    [cmdletbinding()]
    Param( 
            [Parameter(Mandatory=$True,ValueFromPipeline=$True)] 
            [object] $Service,
            [Parameter(Mandatory=$False,ValueFromPipeline=$False)]
            [int] $TimeoutInSeconds = 30,
            [Parameter(Mandatory=$False,ValueFromPipeline=$False)]
            [Switch] $KillAfterTimeout,
            [Parameter(Mandatory=$False,ValueFromPipeline=$False)]

ctigeek

$baseUrl = "https://blah.com"
$servicePoint = [System.Net.ServicePointManager]::FindServicePoint($baseUrl)

$url = "$baseUrl/blah/blah/blah"
Invoke-RestMethod -Uri $url -Method Delete -ErrorAction Stop
##without this cleanup, the above line will stop working after two calls
$ServicePoint.CloseConnectionGroup("")

ctigeek

**Encryption doesn't have to be difficult!** 
In this pragmatic talk we'll be discussing how to use cryptography in your application. 
As an example, we'll walk through how to use various cryptographic technologies to design an end-to-end encrypted chat application.  
What kind of encryption do you use? 
What are the most common and secure configurations? 
And most importantly how do you integrate it into your software? 
We'll address all these questions and walk through code samples in c#. 
We'll cover symmetrical (AES) and public-key cryptographic algorithms, along with multiple types of hashing, 
and various use-cases for each.  
Cryptography configuration can sometimes be tricky, but we'll look at the most secure and versatile configurations for each methodology.  

ctigeek

function Send-SlackNotification($message) {
    $url = "https://slack.com/api/chat.postMessage"
    $headers = @{"Content-Type"="application/x-www-form-urlencoded";"User-Agent"="SlackBot"}
    $body = @{ token="PUT_YOUR_BOT_KEY_HERE"; channel="PUT_CHANNEL_HERE"; text=$message; as_user="true"; }
    
    ##If you are using powershell v5 you can change this to Invoke-RestMethod.
    ##The UsePasicParsing option is not supported in v4 for Invoke-RestMethod, and you really want that option.
    $result = Invoke-WebRequest -Uri $url -Body $body -Headers $headers -Method Post -ErrorAction SilentlyContinue -UseBasicParsing
    $result.Content | ConvertFrom-Json
}

ctigeek

        public static void SetInt64(this ISession session, string key, long lng)
        {
            var bytes = BitConverter.GetBytes(lng);
            session.Set(key, bytes);
        }

        public static long GetInt64(this ISession session, string key, long defaultIfNull)
        {
            var bytes = session.Get(key);
            if (bytes == null || bytes.Length == 0)

ctigeek

function Compare-XmlDocs($actual, $expected) {
    if ($actual.Name -ne $expected.Name) {
        throw "Actual name not same as expected: actual=" + $actual.Name
    }
    ##attributes...
    
    if ($actual.Attributes.Count -ne $expected.Attributes.Count) {
        throw "attribute mismatch for actual=" + $actual.Name
    }
    for ($i=0;$i -lt $expected.Attributes.Count; $i =$i+1) {

ctigeek

function Start-Sleep($seconds) {
    $doneDT = (Get-Date).AddSeconds($seconds)
    while($doneDT -gt (Get-Date)) {
        $secondsLeft = $doneDT.Subtract((Get-Date)).TotalSeconds
        $percent = ($seconds - $secondsLeft) / $seconds * 100
        Write-Progress -Activity "Sleeping" -Status "Sleeping..." -SecondsRemaining $secondsLeft -PercentComplete $percent
        [System.Threading.Thread]::Sleep(500)
    }
    Write-Progress -Activity "Sleeping" -Status "Sleeping..." -SecondsRemaining 0 -Completed
}